<template>
    <div
            :class="{ fullscreen: fullscreen }"
            class="tinymce-container"
            :style="{ width: containerWidth }"
    >
        <textarea :id="tinymceId" class="tinymce-textarea"/>
        <div class="editor-custom-btn-container">
            <editorImage
                    color="#1890ff"
                    class="editor-upload-btn"
                    @successCBK="imageSuccessCBK"
            />
        </div>
    </div>
</template>

<script>
import {
    reactive,
    toRefs,
    computed,
    watch,
    nextTick,
    onMounted,
    onActivated,
    onDeactivated,
    onUnmounted,
} from "vue";
/**
 * docs:
 * https://panjiachen.github.io/vue-element-admin-site/feature/component/rich-editor.html#tinymce
 */
import editorImage from "./components/EditorImage";
import {toolbar, plugins} from "./config";
import load from "./dynamicLoadScript";
// import { ElMessage } from 'element-plus'
const tinymceCDN =
    "https://cdn.jsdelivr.net/npm/tinymce-all-in-one@4.9.5/tinymce.min.js";

export default {
    name: "Tinymce",
    components: {editorImage},
    props: {
        id: {
            type: String,
            default: function () {
                return (
                    "vue-tinymce-" +
                    +new Date() +
                    ((Math.random() * 1000).toFixed(0) + "")
                );
            },
        },
        value: {
            type: String,
            default: "",
        },
        toolbar: {
            type: Array,
            required: false,
            default() {
                return [];
            },
        },
        menubar: {
            type: String,
            default: "file edit insert view format table",
        },
        height: {
            type: [Number, String],
            required: false,
            default: 360,
        },
        width: {
            type: [Number, String],
            required: false,
            default: "auto",
        },
    },
//   emits: ["input"],
    setup(props, context) {
        const state = reactive({
            hasChange: false,
            hasInit: false,
            tinymceId: props.id,
            fullscreen: false,
            languageTypeList: {
                zh: "zh_CN",
                en: "en",
                es: "es_MX",
                ja: "ja",
            },
        });

        const containerWidth = computed(() => {
            const width = props.width;
            if (/^[\d]+(\.[\d]+)?$/.test(width)) {
                // matches `100`, `'100'`
                return `${width}px`;
            }
            return width;
        });

        watch(
            () => props.value,
            (value) => {
                if (!state.hasChange && state.hasInit) {
                    nextTick(() =>
                        window.tinymce.get(state.tinymceId).setContent(value || "")
                    );
                }
            }
        );

        const init = () => {
            // dynamic load tinymce from cdn
            load(tinymceCDN, (err) => {
                if (err) {
                    ElMessage.error(err.message);
                    return;
                }
                initTinymce();
            });
        };

        const initTinymce = () => {
            window.tinymce.init({
                selector: `#${state.tinymceId}`,
                language: state.languageTypeList["zh"],
                height: props.height,
                body_class: "panel-body ",
                object_resizing: false,
                toolbar: props.toolbar.length > 0 ? props.toolbar : toolbar,
                menubar: props.menubar,
                plugins: plugins,
                end_container_on_empty_block: true,
                powerpaste_word_import: "clean",
                code_dialog_height: 450,
                code_dialog_width: 1000,
                advlist_bullet_styles: "square",
                advlist_number_styles: "default",
                imagetools_cors_hosts: ["www.tinymce.com", "codepen.io"],
                default_link_target: "_blank",
                link_title: false,
                nonbreaking_force_tab: true, // inserting nonbreaking space &nbsp; need Nonbreaking Space Plugin
                init_instance_callback: (editor) => {
                    if (props.value) {
                        editor.setContent(props.value);
                    }
                    state.hasInit = true;
                    editor.on("NodeChange Change KeyUp SetContent", () => {
                        state.hasChange = true;
                        context.emit("update:value", editor.getContent());
                    });
                },
                setup(editor) {
                    editor.on("FullscreenStateChanged", (e) => {
                        state.fullscreen = e.state;
                    });
                },
                // it will try to keep these URLs intact
                // https://www.tiny.cloud/docs-3x/reference/configuration/Configuration3x@convert_urls/
                // https://stackoverflow.com/questions/5196205/disable-tinymce-absolute-to-relative-url-conversions
                convert_urls: false,
            });
        };

        const destroyTinymce = () => {
            const tinymce = window.tinymce.get(state.tinymceId);
            if (state.fullscreen) {
                tinymce.execCommand("mceFullScreen");
            }

            if (tinymce) {
                tinymce.destroy();
            }
        };

        const setContent = (value) => {
            window.tinymce.get(state.tinymceId).setContent(value);
        };
        const getContent = () => {
            window.tinymce.get(state.tinymceId).getContent();
        };
        const imageSuccessCBK = (arr) => {
            arr.forEach((v) =>
                window.tinymce
                    .get(state.tinymceId)
                    .insertContent(`<img class="wscnph" src="${v.url}" >`)
            );
        };

        onMounted(() => {
            init();
        });

        onActivated(() => {
            if (window.tinymce) {
                initTinymce();
            }
        });

        onDeactivated(() => {
            destroyTinymce();
        });

        onUnmounted(() => {
            destroyTinymce();
        });

        return {
            ...toRefs(state),
            containerWidth,
            setContent,
            getContent,
            imageSuccessCBK,
        };
    },
    //   data() {
    //     return {
    //       hasChange: false,
    //       hasInit: false,
    //       tinymceId: this.id,
    //       fullscreen: false,
    //       languageTypeList: {
    //         'zh': 'zh_CN',
    //         'en': 'en',
    //         'es': 'es_MX',
    //         'ja': 'ja'
    //       }
    //     }
    //   },
    //   computed: {
    //     containerWidth() {
    //       const width = this.width
    //       if (/^[\d]+(\.[\d]+)?$/.test(width)) { // matches `100`, `'100'`
    //         return `${width}px`
    //       }
    //       return width
    //     }
    //   },
    //   watch: {
    //     value(val) {
    //       if (!this.hasChange && this.hasInit) {
    //         this.$nextTick(() =>
    //           window.tinymce.get(this.tinymceId).setContent(val || ''))
    //       }
    //     }
    //   },
    //   mounted() {
    //     this.init()
    //   },
    //   activated() {
    //     if (window.tinymce) {
    //       this.initTinymce()
    //     }
    //   },
    //   deactivated() {
    //     this.destroyTinymce()
    //   },
    //   unmounted() {
    //     this.destroyTinymce()
    //   },
//   methods: {
    // init() {
    //   // dynamic load tinymce from cdn
    //   load(tinymceCDN, (err) => {
    //     if (err) {
    //       this.$message.error(err.message)
    //       return
    //     }
    //     this.initTinymce()
    //   })
    // },
    // initTinymce() {
    //   const _this = this
    //   window.tinymce.init({
    //     selector: `#${this.tinymceId}`,
    //     language: this.languageTypeList['zh'],
    //     height: this.height,
    //     body_class: 'panel-body ',
    //     object_resizing: false,
    //     toolbar: this.toolbar.length > 0 ? this.toolbar : toolbar,
    //     menubar: this.menubar,
    //     plugins: plugins,
    //     end_container_on_empty_block: true,
    //     powerpaste_word_import: 'clean',
    //     code_dialog_height: 450,
    //     code_dialog_width: 1000,
    //     advlist_bullet_styles: 'square',
    //     advlist_number_styles: 'default',
    //     imagetools_cors_hosts: ['www.tinymce.com', 'codepen.io'],
    //     default_link_target: '_blank',
    //     link_title: false,
    //     nonbreaking_force_tab: true, // inserting nonbreaking space &nbsp; need Nonbreaking Space Plugin
    //     init_instance_callback: editor => {
    //       if (_this.value) {
    //         editor.setContent(_this.value)
    //       }
    //       _this.hasInit = true
    //       editor.on('NodeChange Change KeyUp SetContent', () => {
    //         this.hasChange = true
    //         this.$emit('input', editor.getContent())
    //       })
    //     },
    //     setup(editor) {
    //       editor.on('FullscreenStateChanged', (e) => {
    //         _this.fullscreen = e.state
    //       })
    //     },
    //     // it will try to keep these URLs intact
    //     // https://www.tiny.cloud/docs-3x/reference/configuration/Configuration3x@convert_urls/
    //     // https://stackoverflow.com/questions/5196205/disable-tinymce-absolute-to-relative-url-conversions
    //     convert_urls: false
    //   })
    // },
    // destroyTinymce() {
    //   const tinymce = window.tinymce.get(this.tinymceId)
    //   if (this.fullscreen) {
    //     tinymce.execCommand('mceFullScreen')
    //   }
    //   if (tinymce) {
    //     tinymce.destroy()
    //   }
    // },
    // setContent(value) {
    //   window.tinymce.get(this.tinymceId).setContent(value)
    // },
    // getContent() {
    //   window.tinymce.get(this.tinymceId).getContent()
    // },
    // imageSuccessCBK(arr) {
    //   arr.forEach(v => window.tinymce.get(this.tinymceId).insertContent(`<img class="wscnph" src="${v.url}" >`))
    // }
//   },
};
</script>

<style lang="scss" scoped>
    .tinymce-container {
        position: relative;
        line-height: normal;
    }

    .tinymce-container {
        :deep {
            .mce-fullscreen {
                z-index: 10000;
            }
        }
    }

    .tinymce-textarea {
        visibility: hidden;
        z-index: -1;
    }

    .editor-custom-btn-container {
        position: absolute;
        right: 4px;
        top: 4px;
        /*z-index: 2005;*/
    }

    .fullscreen .editor-custom-btn-container {
        z-index: 10000;
        position: fixed;
    }

    .editor-upload-btn {
        display: inline-block;
    }
</style>
